DTC P1631-81: Communication Error from ECM to VSC Invalid Serial Data Received [10/2022 - 11/2023]: Description
The skid control ECU (brake actuator assembly) sends signals such as brake request signals to the ECM. When the ECM detects logic error signals sent from the skid control ECU (brake actuator assembly) for a certain period of time, DTC P1631-81 is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from |
|---|---|---|---|---|---|
| P1631-81 | Communication Error from ECM to VSC Invalid Serial Data Received | When the ignition switch is ON and the dynamic radar cruise control system is operating, the ECM detects logic error signals sent from the skid control ECU (brake actuator assembly) for approximately 1 second or more. |
|
Does not come on | Radar Cruise 1 |